Which ordered pair is the solution to the system of linear equations y=5x+8 and y= -4x-1

(-1, 3)

Step-by-step explanation:

y=5x+8

y= -4x-1

5x+8= -4x-1

5x+4x= -1-8

9x= -9

x= -1

y=5(-1)+8

y= -5+8

y= 3

(-1, 3)

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6